Eliot Miranda uploaded a new version of Collections to project The Trunk: http://source.squeak.org/trunk/Collections-eem.912.mcz
==================== Summary ====================
Name: Collections-eem.912 Author: eem Time: 19 September 2020, 1:10:19.845777 pm UUID: 04ad0d49-19ab-4e40-8570-e63c00cc49ca Ancestors: Collections-eem.911
Add peekLast to the SharedQueues to complement peek
=============== Diff against Collections-eem.911 ===============
Item was added: + ----- Method: SharedQueue>>peekLast (in category 'accessing') ----- + peekLast + "Answer the object that was sent through the receiver last and has not + yet been received by anyone. If no object has been sent, answer nil" + + "SharedQueue new nextPut: 1; nextPut: 2; peekLast" + + ^readSynch + critical: + [accessProtect critical: + [writePosition > 1 ifTrue: + [contentsArray at: writePosition - 1]]] + ifLocked: [nil]!
Item was added: + ----- Method: SharedQueue2>>peekLast (in category 'accessing') ----- + peekLast + "Answer the object that was sent through the receiver last and has not + yet been received by anyone. If no object has been sent, answer nil" + + "SharedQueue2 new nextPut: 1; nextPut: 2; peekLast" + ^monitor critical: + [items isEmpty ifFalse: + [items last]]!